Home / 1,316,178.30-1,816,159.08-772,115.58

Finding the Fourth Proportional to 1,316,178.30, 1,816,159.08 and 772,115.58

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Solution

The fourth proportional to 1,316,178.30, 1,816,159.08 and 772,115.58 is: 1,065,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,178.30 : 1,816,159.08 = 772,115.58 : x
  2. Step 2: Convert to fraction form
    1,316,178.30/1,816,159.08 = 772,115.58/x
  3. Step 3: Cross multiply
    1,316,178.30x = 1,816,159.08 × 772,115.58
  4. Step 4: Simplify right side
    1,316,178.30x = 1,402,284,721,426.47
  5. Step 5: Solve for x
    x = 1,402,284,721,426.47/1,316,178.30
  6. Step 6: Final answer
    x = 1,065,421.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.